90870337 has 4 divisors (see below), whose sum is σ = 91069636. Its totient is φ = 90671040.

The previous prime is 90870323. The next prime is 90870341. The reversal of 90870337 is 73307809.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56190016 + 34680321 = 7496^2 + 5889^2 .

It is a cyclic number.

It is not a de Polignac number, because 90870337 - 2¹¹ = 90868289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90870296 and 90870305.

It is not an unprimeable number, because it can be changed into a prime (90870347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98964 + ... + 99877.

It is an arithmetic number, because the mean of its divisors is an integer number (22767409).

Almost surely, 2^90870337 is an apocalyptic number.

It is an amenable number.

90870337 is a deficient number, since it is larger than the sum of its proper divisors (199299).

90870337 is a wasteful number, since it uses less digits than its factorization.

90870337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199298.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 90870337 is about 9532.5934036861. The cubic root of 90870337 is about 449.5804105336.

The spelling of 90870337 in words is "ninety million, eight hundred seventy thousand, three hundred thirty-seven".